ITC melayani sektor pemerintah dan swasta, perusahaan kecil, menengah dan besar, sekolah dan universitas, organisasi dan perseorangan dengan menyediakan assesmen dan sejumlah pengujian internasional yang akurat dan terjamin, yang dapat digunakan untuk membuktikan bahwa mereka memiliki kualitas yang terbaik.

Itje Chodidjah has worked as a free lance teacher trainer, an education consultant and lecturer in an Indonesian university. With over twenty five years of experience as a teacher and the last 12 years also as trainer, she has built up substantial expertise in giving training and consultancy in English Language Teaching and educational field. Her professional background also includes project design, implementation and monitoring in a range of settings.

She has extensive experience working with government agencies and schools. She also gives training in South East Asia Region. She was a team member of 2004 Curriculum writing for English in Primary School in Indonesia and its finalization by National Curriculum Centre. She does many English Teacher Trainings and Trainer Trainings for different agencies, such as, the Ministry of Education and The British Council in the East Asia region. For the last two years she does training for ETA (Young American English Teacher Assistance) sponsored by Aminef.

She also writes materials for different levels and purposes. She is active in giving papers and presentation and conducting workshops in national, regional and international forums. Recently she involves in handling scholarship and social education activities for young people.